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Present of indicative "-go" ending. Ref. :-go form
Past Definite "-je" ending. Ref. :-je form
Present of indicative "-oy" ending. Ref. :-oy form
Present of indicative "-zco" ending. Ref. :-zco form
Past Definite built with a modified stem Ref. :anduve, etc...
Future and Conditional forms built from modified infinitive Ref. :habré, etc